package com.buer.train.common.utils;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.lang3.StringUtils;
import sun.misc.BASE64Decoder;

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.spec.SecretKeySpec;
import java.math.BigInteger;

/**
 * AES的加密和解密
 * @author libo
 */
public class Aes {
    //密钥 (需要前端和后端保持一致)
    private static final String KEY = "abcdefgabcdefg45";
    //算法
    private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";
    
    /** 
     * aes解密 
     * @param encrypt   内容 
     * @return 
     * @throws Exception 
     */  
    public static String aesDecrypt(String encrypt) {  
        try {
            return aesDecrypt(encrypt, KEY);
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }  
    }  
      
    /** 
     * aes加密 
     * @param content 
     * @return 
     * @throws Exception 
     */  
    public static String aesEncrypt(String content) {  
        try {
            return aesEncrypt(content, KEY);
        } catch (Exception e) {
            e.printStackTrace();
            return "";
        }  
    }  
  
    /** 
     * 将byte[]转为各种进制的字符串 
     * @param bytes byte[] 
     * @param radix 可以转换进制的范围，从Character.MIN_RADIX到Character.MAX_RADIX，超出范围后变为10进制 
     * @return 转换后的字符串 
     */  
    public static String binary(byte[] bytes, int radix){  
        return new BigInteger(1, bytes).toString(radix);// 这里的1代表正数  
    }  
  
    /** 
     * base 64 encode 
     * @param bytes 待编码的byte[] 
     * @return 编码后的base 64 code 
     */  
    public static String base64Encode(byte[] bytes){  
        return Base64.encodeBase64String(bytes);  
    }  
  
    /** 
     * base 64 decode 
     * @param base64Code 待解码的base 64 code 
     * @return 解码后的byte[] 
     * @throws Exception 
     */  
    public static byte[] base64Decode(String base64Code) throws Exception{  
        return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);  
    }  
  
      
    /** 
     * AES加密 
     * @param content 待加密的内容 
     * @param encryptKey 加密密钥 
     * @return 加密后的byte[] 
     * @throws Exception 
     */  
    public static byte[] aesEncryptToBytes(String content, String encryptKey) throws Exception {  
        KeyGenerator kgen = KeyGenerator.getInstance("AES");  
        kgen.init(128);  
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);  
        cipher.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(encryptKey.getBytes(), "AES"));  
  
        return cipher.doFinal(content.getBytes("utf-8"));  
    }  
  
  
    /** 
     * AES加密为base 64 code 
     * @param content 待加密的内容 
     * @param encryptKey 加密密钥 
     * @return 加密后的base 64 code 
     * @throws Exception 
     */  
    public static String aesEncrypt(String content, String encryptKey) throws Exception {  
        return base64Encode(aesEncryptToBytes(content, encryptKey));  
    }  
  
    /** 
     * AES解密 
     * @param encryptBytes 待解密的byte[] 
     * @param decryptKey 解密密钥 
     * @return 解密后的String 
     * @throws Exception 
     */  
    public static String aesDecryptByBytes(byte[] encryptBytes, String decryptKey) throws Exception {  
        KeyGenerator kgen = KeyGenerator.getInstance("AES");  
        kgen.init(128);  
  
        Cipher cipher = Cipher.getInstance(ALGORITHMSTR);  
        cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(decryptKey.getBytes(), "AES"));  
        byte[] decryptBytes = cipher.doFinal(encryptBytes);  
        return new String(decryptBytes);  
    }  
  
  
    /** 
     * 将base 64 code AES解密 
     * @param encryptStr 待解密的base 64 code 
     * @param decryptKey 解密密钥 
     * @return 解密后的string 
     * @throws Exception 
     */  
    public static String aesDecrypt(String encryptStr, String decryptKey) throws Exception {  
        return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr), decryptKey);  
    }  
    
    /**
     * 测试
     */
    public static void main(String[] args) throws Exception {  
      /*  String content = "123";
        System.out.println("加密前：" + content);  
        System.out.println("加密密钥和解密密钥：" + KEY);  
        String encrypt = aesEncrypt(content, KEY);  
        System.out.println("加密后：" + encrypt);  
        String decrypt = aesDecrypt(encrypt, KEY);  
        System.out.println("解密后：" + decrypt);  */
       // System.out.println(aesEncrypt("{\"phone\":\"13260916167\",\"code\":\"369621\"}"));

       /* System.out.println(aesEncrypt("{\"id\":30,\"token\":\"7b04dc31-49b9-49ac-b3ac-293b854eff44\"}"));
        System.out.println(aesEncrypt("{\"offset\":0,\"limit\":10,\"token\":\"7b04dc31-49b9-49ac-b3ac-293b854eff44\"}"));
        System.out.println(aesEncrypt("{\"offset\":0,\"limit\":10,\"token\":\"7b04dc31-49b9-49ac-b3ac-293b854eff44\"}"));
        System.out.println(aesDecrypt( "t/IkKPCi3Q4/+uG6w+udCurc0h0mYNgqX3sxkUiLmz2jm2Pz+NMtcAy6MSlckTWawDbXvgVSTOGbHIl6pAzVcw=="));*/

        //System.out.println(aesEncrypt("{\"token\":\"5f50957d-22b4-4779-b2ac-068f102b6076\",\"startTime\":\"2019-06-13\",\"endTime\":\"2019-06-14\",\"offset\":0,\"limit\":10,\"reserveFlag\":6}"));

       // System.out.println(aesEncrypt("{\"username\":\"5f50957d-22b4-4779-b2ac-068f102b6076\",\"offset\":0,\"limit\":10,\"reserveFlags\":\"3,5,6\"}"));
       // System.out.println(aesDecrypt("W1QZs8wiGwRkRhcRJpB35j720Cjsdt17dzl8TdFlolvMiDjeLuugjqd2C/X/7353wDbXvgVSTOGbHIl6pAzVcw=="));

         //String password = MD5Utils.encrypt("13000000000", "123456");
        //System.out.println(password);
        //System.out.println(aesEncrypt("{\"token\":\"35b5fef5-ea37-485a-bafa-f6ccb4f95428\"}"));
        //System.out.println(aesEncrypt("{\"userName\":\"13100000000\",\"passWord\":\"123456\"}"));
        String str="{\"nickName\":\"晒太阳的鱼\",\"gender\":1,\"language\":\"zh_CN\",\"city\":\"Chuzhou\",\"province\":\"Anhui\",\"country\":\"China\",\"avatarUrl\":\"https://wx.qlogo.cn/mmopen/vi_32/11gKZk9TQkdoFzTEd8S6bX63jZY0CoZYVBTOXLJ9miaQ5iclKe6v4sshWicyR5FR1yqsJxpfPUwKwluwFzwDRXhuQ/132\"}";
        System.out.println(str.replaceAll("\"","\'"));
    }
}